chelli — calm sound studio - Browser sound studio for sleep, focus and calm. Free presets

chelli — calm sound studio is a Community listing on Launch Llama with 0 total upvotes, founded by Eyal Chelli who joined in Oct 2026, compared against 6 alternatives.

About

chelli is a browser sound studio for sleep, focus and winding down. Pick a free preset (Sleep, Meditate, Calm, Focus) and it plays straight away. The sound is generated on your device and nothing is streamed. Headphones give each ear its own tone; on a phone speaker the tones are joined and gently pulsed. The full studio (paid) lets you build your own tones and atmosphere. For relaxation and entertainment only; not a medical device and no health claims.

Pricing

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